May 20, 2007
MANILA, Philippines -- State volcanologists raised the alert level to 2 at the volatile Bulusan volcano effective noon Sunday, warning about the “possibility of an explosive eruption.”
Over the past three days, 673 earthquakes have been recorded in the area of the volcano, up from 223 tremors during the previous three-day period, Philippine Institute of Volcanology and Seismology (Phivolcs) Director Renato Solidum Jr. said Sunday.
Volcanologist also observed “inflation” on the side of the volcano due to gas and fluid pressure.
“We raised the alert at level 2 after we observed an increase in volcanic unrest. At alert level 2 there’s a possibility of an explosive eruption,” Solidum said.
He “strongly advised” residents “to stay out of the four-kilometer radius of the volcano, which is a permanent danger zone.”
Bulusan last spewed ash on May 12, the 23rd such explosion since March 2006.